<!doctype html>
<html>
<head>
  <meta charset="utf-8" />
  <title>Your App</title>
</head>
<body>
  <div id="root"></div>
  <script>
    // 修改默认 HTML 模板
    window.onload = function() {
      console.log('------------window onload---------');
    }
  </script>
</body>
</html>
